Microsoft claims that Windows 11's built-in security tool is enough for most PC users, but that's only the case if the tool works. An issue affecting some PCs prevents security scans from being ...

Microsoft this week announced that its Microsoft Defender Vulnerability Management solution can now scan Windows devices that are lacking certain agent support. This capability, called "authenticated ...

Microsoft has recently addressed a weakness in the Microsoft Defender Antivirus on Windows that allowed attackers to plant and execute malicious payloads without triggering Defender's malware ...

A patch Microsoft released on Wednesday to fix a zero-day vulnerability in its Defender security engine may cause Windows machines to write files large enough to completely consume available disk ...

Discover the best antivirus software for 2026. We tested top picks comparing malware protection, phishing tools, features, pricing, and device support.